protected boolean canConnect(VDS vds) {
// execute the connectivity and id uniqueness validation for VDS type hosts
if (!getParameters().isPending()
&& !getParameters().isProvisioned()
&& Config.<Boolean>getValue(ConfigValues.InstallVds)) {
try (final EngineSSHClient sshclient = getSSHClient()) {
sshclient.connect();
sshclient.authenticate();
String hostUUID = getInstalledVdsIdIfExists(sshclient);
if (hostUUID != null && vdsDao.getAllWithUniqueId(hostUUID).size() != 0) {
return failValidation(EngineMessage.ACTION_TYPE_FAILED_VDS_WITH_SAME_UUID_EXIST);
}
return isValidGlusterPeer(sshclient, vds.getClusterId());
} catch (AuthenticationException e) {
log.error(
"Failed to authenticate session with host '{}': {}", vds.getName(), e.getMessage());
log.debug("Exception", e);
return failValidation(EngineMessage.VDS_CANNOT_AUTHENTICATE_TO_SERVER);
} catch (SecurityException e) {
log.error(
"Failed to connect to host '{}', fingerprint '{}': {}",
vds.getName(),
vds.getSshKeyFingerprint(),
e.getMessage());
log.debug("Exception", e);
addValidationMessage(EngineMessage.VDS_SECURITY_CONNECTION_ERROR);
addValidationMessageVariable("ErrorMessage", e.getMessage());
return failValidation(EngineMessage.VDS_CANNOT_AUTHENTICATE_TO_SERVER);
} catch (Exception e) {
log.error("Failed to establish session with host '{}': {}", vds.getName(), e.getMessage());
log.debug("Exception", e);
return failValidation(EngineMessage.VDS_CANNOT_CONNECT_TO_SERVER);
}
}
return true;
}
public EngineSSHClient getSSHClient() throws Exception {
Long timeout =
TimeUnit.SECONDS.toMillis(
Config.<Integer>getValue(ConfigValues.ConnectToServerTimeoutInSeconds));
EngineSSHClient sshclient = new EngineSSHClient();
sshclient.setVds(getParameters().getvds());
sshclient.setHardTimeout(timeout);
sshclient.setSoftTimeout(timeout);
sshclient.setPassword(getParameters().getPassword());
switch (getParameters().getAuthMethod()) {
case PublicKey:
sshclient.useDefaultKeyPair();
break;
case Password:
sshclient.setPassword(getParameters().getPassword());
break;
default:
throw new Exception("Invalid authentication method value was sent to AddVdsCommand");
}
return sshclient;
}
